[sdiy] Endless pots

[Paul Burns]

> For an 'endless' rotation to voltage converter, you don't
> need a polariser - just a cunningly shaped piece of card that partly
> occludes the light to the LDR. Like optical wah pedals.
>
I have just this morning taken apart a broken (expensive! 47 GBP ) wireless
Logitech mouse ( the wireless dongle got snapped beyond repair ) to see what
was salvageable , and the wheel works exactly on this principle ... there is
a sensor on one side of the wheel which has  tiny little slots through it
... and an led on the other side.

I am looking to incorporate it into a MIDI arduino controller ...

Regards

Paul Burns